Era
20th century
29
1933-1945
15
1918-1933
8
1945-1955
6
World War, 1939-1945
6
1889-1945
2
1891-1944
2
19th century
2
1789-1900
1
1809-1877
1
1870-1940
1
1871-1918
1
1878-1929
1
1879-1955
1
1900-1945
1
1913-1980
1
1918-1938
1
1918-1945
1
1922-2012
1
1945-1990
1
1990-
1
Allied occupation, 1945-1955
1
Bombardment, 1918
1
German occupation, 1941-1944
1
Middle Ages, 600-1500
1
Saxon House, 919-1024
1
To 1500
1